查询词典 hashing technique

The converter combines the advantages of the PWM technique and soft-switching technique, the PWM is effected all over the whole loads range, and soft-switching is effeted only in the switching transition period, the ZVS of leading-leg is achieved by using the energy stored in leakage inductor of the transformer and the output inductor, the ZCS of lagging-leg is achieved by using a blocking DC capacitor, the ZVS and ZCS are achieved for the whole load ranges (5A~250A).

控制电路采用相移控制方式，综合了PWM控制和软开关技术的优点，在大范围内实现PWM控制，而在功率器件换流期间实现软开关换流，其中超前桥臂利用变压器的漏感，实现了零电压开关，滞后桥臂利用隔直电容，实现了零电流开关，并且整个变换电路能在（5A~250A）的范围内实现软开关工作条件，满足弧焊电源负载变化大的特点。

The true resistivity of formations computed precisely by using of the inversion technique, the interactive processing technique can be applied to structural explanation of formations, analysis for stability of wellbore, prediction of the breaking stress of formations and the deliverability, and the judgment of stress direction of formations.

利用反演技术求准地层真电阻率，利用人机交互处理技术进行地层构造解释，井眼稳定性分析及地层破裂压力预测、产能预测，进行了地层应力方向的判断。

For fabrication technique, there has been earlier liquid-state fermentation fabrication method compared with solid-state fermentation, while pure-grain fermentation brewage with uncooked materials can be said to be the third-generation latest fabrication technique after traditional solid-state method transformed into liquid-state method.

在酿造工艺上，早就有了相对於固态发酵的液态发酵酿造法，而纯粮生料发酵酿造，可以说是传统的固态法进入液态法后的第三代最新酿造技术。

Of the moonlit night existence technique a little bit difficult carry on the technique to offend the pass.

他表示，目前正对首次地外天体软着陆、突破月面巡视技术、掌握月夜生存技术等主要技术难点进行技术攻关。

Firstly, oscilloscope control system based on GPIB technique is presented with friendly operation environment to the HIFU system, and it uses multithreading technique in programming to realize real-time recording and display of the signal; Secondly, temperature collection and data recording system is designed, which also could get real-time recording and display of the 16 channel temperature signal, and it's believed to be of great use for further experiments of the HIFU system; Thirdly, multiple ultrasonic phased array's phase shifter is designed,which could provide 8-bit phase control in a range of frequency where the centrical frequency is 1MHZ. Fourthly, the module of serial communication is realized to insure the communication between devices and computer, including both synchronous and asynchronous communication, which enables the system to transfer data reliably and stably; Finally, the module of digital quantity control is accomplished, which provide for upper application the consistent solution to the control of exterior devices via digital interface. It can get or set the devices state using interrupt mode to receive input signal or send output signal.

主要有以下几个方面：设计了基于GPIB的示波器控制系统，给课题的研究工作提供了一个良好的环境，它采用了多线程编程的方法，能够较好的实时显示当前波形并记录数据；设计了温度采集和数据记录系统，能够对16路温度信号进行并行同步的实时采集，用于HIFU剂量学研究中温度场检测和医疗评价；设计了相控阵相位延时电路并且通过调试，满足了课题的相位控制的要求，在中心频率为1MHZ左右的频率范围内都能够达到8-bit相位控制；实现了串口通讯模块，为各项设备与计算机之间的通讯提供保证，它提供同步和异步的通讯能力，使系统能够可靠稳定的传输数据；建立了数字量控制模块，为上层应用程序提供一致的方法使用数字接口控制外部仪器，它使用中断的方式来接收输入或输出设定的开关量信号，从而得到或设定各种仪器的状态。

At last, this thesis points out some problems existing in the centrifuge model test technique and estimates the developing trend of this technique.

论文最后指出了离心模型试验技术目前存在的一些问题和今后的发展趋势和研究方向。

To study and know well the rudimentary knowledge and the basic techniques of modern Microbiology are demanded for Graduate students. The experiments including the principle and operation of phase contrast microscope and fluorescence microscope; Microphotography , the technique of photographic enlargement;Applications of polymerase chain reaction ; Construction, transformation and detection of plasmid in E.coli ; Infectivity of virus and its molecular detection ; The technique of protoplast fusion in filamentary fungi ; Induction and purification of β-galactosidase from E.coli and assay the enzyme activity; Detection of GC content and DNA-DNA hybridization in bacteria ; Production , extraction and detection of poly--hyduoxy butyrate from bacteria.

以实验教学为主，要求研究生学习和掌握一些现代微生物学研究所需的基本技术，内容包括：相差显微镜、荧光显微镜的使用和显微摄影技术，PCR技术的应用，细菌质粒的构建、转化及检测技术，病毒的侵染性及其分子检测技术，丝状真菌原生质体融合技术，大肠杆菌β-半乳糖苷酶的分离及纯化及其动力学测定技术，细菌G+C mol%的测定及细菌DNA-DNA杂交技术和聚羟基丁酸产生菌的发酵、产物提取及检测技术等。

Methods: minimum inhibitory concentrationvalues of three antibiotics were determined in mueller hinton broth by the microdilution technique.mics of the combination of cefoperazone or ceftazidime and levofloxacin were determined by the microdilution chequer board technique,interpretation of the results was made by calculation of fic.

用微量液体稀释法测三种抗生素单用时对31株铜绿假单胞菌的最低抑菌浓度，并用微量液体平板棋盘法测出联合用药时对这些菌株的mic，计算fic指数。

Later, it makes some comparison with four kinds of modulation technique, and finally, it implements the three-level PWM switching power amplifier with the PWM technique. The power of the amplifier is 2kVA, and the frequency bandwidth is 10～3kHz. In the thesis, the author designs and makes the hardwares of the switching power amplifier. The hardwares contain power inverter rank circuit, control system circuit based on DSP, drive and isolation circuit, and protective circuit. The thesis also analyses the potential safety problems and put forward some solutions for the problems. Furthermore, the thesis accomplishes the software design of the control system, and successfully debugs it. The methods of designing higher power ampilfier are also discussed in the thesis. It analyses the feasibility of the methods, outlines the way of how to design higher power switching power amplifier, and does some experiments with the method of switches-parallelling.

根据电动振动试验系统对开关功放的要求，提出了以电感电流瞬时值控制技术为基础的三电平脉宽调制开关功放的设计方案，并通过系统仿真进行了原理性论证；然后设计并制作了开关功放的硬件，包括功率转换电路，基于DSP的控制电路，驱动、隔离电路以及保护电路；针对开关功放数学模型不易得出的特点，细致分析了模糊自适应PID控制方法，在此基础上编写了控制程序；研制出一台功率为2kVA，通频带为10～3kHz的三电平脉宽调制开关功放；论文中还探讨了实现大功率开关功放的方法，分析了各种方法的可行性，给出了实现大功率开关功放的思路，并进行了并联开关管实现大功率开关功放的实验。

The technique path of the research is : on the rules of obtainable of data, specialty, sensitivity, representative, characteristic of full-scale and perspicuity of indexes, used external statistic way which includes ways of a coefficient of variation, case cluster and relation analysis, variable cluster and subjective Delphi, sift from initial index system, and finally get a complete evaluation index system for labor relation which meet the external technique requirement and subjective theoretic and practical analysis.

本论文研究的技术路径为：以指标资料的可获得性，指标的特异性、敏感性、代表性、全面性和简明性为原则，运用包括变异系数法、样本聚类和相关分析法、指标聚类法等客观的数理统计方法和主观的德尔菲法，对初始的指标体系进行了筛选，最终确定了满足客观技术要求和主观理论经验的完整的劳动关系评价指标体系。

Yet, Edith says, there was always money in the bank.

但是Edith说，她的银行户口里面总是有钱。

We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.

我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。